About Us


Mervin Zimmerman founded this company in 1968, starting out with a little red pickup truck and using the family barn as his base of operations. He focused on providing quality plumbing, heating and air conditioning services to residential customers in the local area.

From the beginning, Mervin had a vision of a retail store and showroom where customers could come to see products, get parts and receive advice. From this vision, The Bath Barn was born. Over the years, Mervin Zimmerman Inc. emerged as a leader in custom bath remodeling and continued to provide plumbing, heating and air conditioning service to residential and light commercial customers.

Today, our retail store & showroom features bathroom designs, along with hundreds of bathroom products on display to help our customers visualize their dream bathrooms and make that vision a reality within their ideal budget.


Mervin & Martha Zimmerman

As a family-owned and service-oriented business, MZI’s mission is to provide the highest quality and workmanship possible while being available 24 hours a day to serve our customers.




Our Staff


Merle Zimmerman,
President

Merle, son of Mervin, began his work experience as a plumber’s helper right out of high school. He quickly moved up the ranks gaining experience in all aspects of the company. As president he continues to be involved in the day to day management of the company to insure customers receive quality service in all areas. Merle is a movie buff and enjoys spending time with his family. Merle and his wife Kimberly are passionate about orphaned children and lead a ministry called Team127 that supports adoption of orphans specifically those with special needs.


Bonnie Hoover,
Office & Showroom Manager

Bonnie started working in the family business beside her father, Mervin, right out of high school and has been in various office positions ever since. Starting out full-time and then transitioning to part-time while she raised her children, she is now back leading the office and showroom. Bonnie enjoys helping customers choose fixtures in the showroom to create a bathroom that fits their style. Along with spending time with her family, she is also Children’s Ministry director at her church where she enjoys seeing children learn and grow.


Cody Hoover,
General Manager/Bath Designer

Cody is the grandson of Mervin Zimmerman and began working summers and Saturdays in his teen years in the store and showroom learning the products that we sell. During college he began estimating bathroom remodeling projects and helping customers in the showroom on a part time basis. After college he joined the sales team full time specializing in bath remodeling. Today he is General Manager overseeing all aspects of MZI & The Bath Barn, along with his responsibilities as General Manager he is one of our bath designers working with all projects large or small. Cody enjoys sports trivia, movies and humorous people. He also loves teaching Sunday School at his church.


Vickie Martin,
Administrative Assistant

Vickie has been working here for over twelve years. Her responsibilities include answering phones, and handling all accounts payable and receivable. She is the go to person on our Preventive Maintenance Plans and assists everyone in the office as needed. Vickie enjoys the friendly and comfortable Christian atmosphere at MZI. Family is very important to her and in her spare time she is spending time with them or helping anyone in need. She finds humor in many things and will often be heard laughing in the office.


Jason DiBona,
Store Manager/Sales

Jason has been with us for over ten years and manages the parts counter area and inventory for the store and shop. He also serves customers at the parts counter and in showroom or over the phone. Jason enjoys customer interaction and the organization he assists with at MZI. Outside of the office he loves to spend time with his wife and 3 children and keeps busy doing various jobs with his nephew’s landscaping business. He is an avid member of his church and loves to study the Bible.


Ed Halstead,
HVAC Sales Manager

Ed works with HVAC and plumbing sales and has worked here for over thirty years. Primarily he works on HVAC and plumbing estimates as well as being the HVAC project manager. He enjoys meeting and talking with customers. He has a Refrigerant Transition and Recovery Certificate of completion from Ferris State University. Ed and his wife have two daughters. In his leisure time he enjoys motorcycling, snowmobiling, and spending time with family especially his new grandson.


RJ Milholin, Purchasing/Sales

RJ is our lead in purchasing and parts counter sales. He has worked here for over twenty-eight years. RJ works on ordering materials for jobs and stock, answering sales calls, and helping customers at the parts counter. He is a people-person and loves those whom he gets a chance to help as well as his co-workers. He has previously worked in plumbing services, as well as a L.P. Gas Serviceman. RJ loves being with his son and helping others especially his church family.

Joel Smoker, Project Manager

Joel joined MZI as a helper in Bath Remodeling. His attention to detail and prior experience working with construction quickly made him a valuable part of the team becoming a lead Bath Remodeler. Recently Joel was promoted to project manager bringing job experience from the field to help projects run smoothly, stay on schedule and communicate with our customers. Joel is married to Linsey, daughter to Merle Zimmerman and they have 5 children. Beside spending time with his children, he enjoys the outdoors by hiking and backpacking.


Cole Hoover, Warehouse/Sales

Cole is a grandson to Mervin Zimmerman and son to Bonnie Hoover. He has grown up helping out at MZI and The Bath Barn. While in college he has worked during the summer helping wherever he was needed. Now, joining us full time after his graduation from Messiah College he manages our main warehouse and takes care of the receiving and shipping of materials. He also does deliveries for customers and to our field employees. Additionally, he helps out in the store and showroom as a salesperson. Cole loves people and helping them whether it is loading their car or helping with products in the store and showroom. After work he enjoys sports of any kind especially volleyball. Cole also enjoys volunteering for TNT Youth Ministry and helping with kid’s club at his church.


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